Status Quo and Problems of Underground Space Researches

With the intensifying urbanization and the increasing demands for land resources, urban development is gradually expanding into the underground. Rational development and design of underground space can not only improve use efficiency of land, relieve land use pressure, but also facilitate people's living and improve urban environment. Analysis of the status quo and problems of underground space design researches in China, and the directions of future underground space research and development will contribute to the development and design of underground space. On the basis of reviewing research papers in the past decades, the contents of underground space researches were divided into 10 major categories, the current contents of underground space researches in China and existing problems were analyzed, and it was proposed that the future underground space design researches should be based on traditional research contents and methods, use advanced technologies such as information technology, show the interdisciplinary cooperation, pay attention to human feelings, protection and continuation of cultural context, and adhere to green and sustainable development with consistent innovation and progress.     

光景观在城市带状绿地中的应用研究

以“光”作为景观要素,探讨城市带状绿地中如何营造良好的景观光环境。目前对园林景观中的光环境,社会及业内已开始逐渐关注,但对特定的城市绿地类型中光景观的应用几乎没有系统的论述。笔者以丽水市大溪江滨江景观带为例,对城市带状绿地光环境营造的规划原则和设计方法进行初步总结和探讨,指出城市带状绿地光景观规划应基于掌握规划对象所在地光气候条件及解读规划对象属性的基础上,遵循功能性、连续性和整体性原则,设计时可使用建构空间、引导流线;突出焦点、塑造形象;烘托氛围、营造意境;彰显四季,见证朝暮等具体方法。通过研究,以期为光景观与城市绿地的和谐相融提供一定的启迪。     

中国农业绿色防控技术推广研究进展

本文旨在梳理当前应用于中国农业中的绿色防控技术,为中国发展绿色防控技术奠定理论基础,以中国知网数据库作为原始文献来源,高级检索“主题”=“绿色防控”、“并含”=“技术推广”、时间为2010—2019年、采用文献研究法分析所获得344篇文献的相关信息。归纳中国农业现阶段在绿色防控技术应用与推广中存在的问题,并且针对存在的问题提出可供参考的相应解决对策。结果表明：通过分析所发表的文章的数量及分布可以看出,中国绿色防控技术正处于不断发展的阶段,更多的研究者在深入探索这一领域,其中生物防治技术和物理防治技术由于适用性较强,在中国各区域内推广迅速,已经在中国进行广泛应用。     

我国农村公共文化服务政策研究——上篇：发展历程

为了全面了解农村公共文化服务政策的发展历程,促进当代中国农村公共文化服务体系建设。本研究对1979—2015 年间中国农村公共文化政策的制定与实施情况进行了全面梳理。研究表明,农村公共文化服务政策颁布和实施大致经历了“肇始”、“探索”、“深化”3 个阶段,政策的雏形在肇始阶段逐渐形成、轮廓在探索阶段逐渐显现、较为系统的体系在深化阶段基本形成。深入分析农村公共文化服务政策实施背景、实施情况、实施特点及其影响,对于完善农村公共文化政策体系、促进农村公共文化服务体系建设有着重要意义。     

Green Thought on the Energy Saving of Air Conditioning

This paper points out the problems in air conditioning and the urgent need in energy saving. By observations and analyses, it shows that the idea of making use of natural resources to improve the indoor air may date back to ancient times. This paper also examines the feasibility of taking advantage of dry or wet bulb temperature, solar energy, underground rock etc. to regulate the room temperature. Finally, it concludes that the above mentioned old idea has such characteristics as energy saving, low cost and less pollution. Therefore, it is a good green plan in energy saving air conditioning.     

小麦旗叶衰老过程不同数学模型拟合比较及衰老特征分析

为了准确了解小麦叶片的衰老特征,筛选适合描述小麦叶片衰老过程的数学模型, 2011年和2012年分别以91个和105个小麦品种(系)为材料,用"S"型曲线中的Logistic、Gompertz和Richards模型拟合了试验品种叶片的衰老过程,解析了其叶片衰老特征。结果表明,试验品种可分为延绿、中等延绿、中等早衰和早衰4种类型。其旗叶衰老过程可分为衰老起始期、快速衰老期和衰老结束期3个阶段,3个阶段旗叶的衰老速度表现为"慢–快–慢",不同延绿类型品种开花后旗叶的绿色叶面积百分比下降主要在衰老过程的中后期。3种模型对不同延绿类型品种旗叶衰老过程均可以拟合,Gompertz和Richards模型拟合度接近,高于Logistic模型。Gompertz模型的拟合度以早衰中等早衰中等延绿延绿类型。不同延绿类型品种旗叶衰老曲线特征参数达到最大衰老速度时间(TMRS)、平均衰老速度(ARS)和绿色叶面积持续期(GLAD)存在显著差异, TMRS和GLAD以延绿中等延绿中等早衰早衰, ARS以早衰中等早衰中等延绿延绿。Gompertz模型对小麦叶片衰老过程的拟合度优于Logistic模型。叶片衰老过程特征参数可以用于品种延绿性差异评价。     

Renovation of Urban Green Space Based on Regeneration of Historical Place——A Case Study of Jianqiao Historical Block in Hangzhou

The protected historical blocks always fail to undertake some necessary functions of modern cities because they inherit texture and skyline of historical spaces,and also traditional building density,so these blocks lack in popularity and fall into rigid display of folk customs.In view of the contradiction between protection and vitality,this study proposes the concept of"intergrowth between underground space and urban block"on the basis of theoretic researches and construction practices,aims at renovating urban public green spaces by following the principle of regeneration of place,so as to improve and make up modern urban functions of historical blocks,stimulate vitality of the community,provide an effective solution to the development of new cities and renovation of old cities.     

绿色农畜产品清洁生产模式的研究

摘要 环境污染与食品污染,已成为当今世界关注的严重问题。虽然各国自然资源条件和经济发达程度的差异,使得农业生产模式各不相同。但以防止环境污染和生产绿色─有机食品为主要内容的可持续发展农业,及其相应的技术研究,在全世界已形成一个大趋势。我国在这一工作上起步较晚,理论研究和应用技术都不及发达国家。目前许多农业科技工作者,根据我国自然资源条件及经济技术现状,将研究目标定格在可持续发展的绿色农畜产品清洁生产水平上,是非常现实和客观的,且具较强的可操作性。本文采用文献分析,理论与实践相结合的研究方法,针对农区种草养畜的生产趋势,用构建食物链的技术措施,建立绿色农畜产品清洁生产模式,达到既生产符合人们希望的绿色农畜产品,又不污染农业环境的目的。     

Current Situation and Development Trend of Regional Clothing Color

This paper applied the method of literature survey to study the current situation of regional clothing color in China and foreign countries,and it summarized the relevant theories in this field. The deficiencies and losses of the research on regional clothing color in the area of current academic circles were pointed and the development trend of regional color culture in the future clothing design was proposed. The study showed that the research on the regional clothing color has a great theoretical and application significance,and it fits for the present idea of traditional heritage and regional culture dissemination.     

Urban Color Planning of Xuzhou City

Urban color planning will not only excavate historical context to strengthen urban difference and highlight urban individuality,thereby forming urban style and features that are easy to identify and perceive,but integrate natural landscape and control urban color,open space,green space system and architectural elements to crate a splendid visual space.Adhering to the concept of inheriting the historical context and culture,urban color planning of Xuzhou City fully taps the cultural potential of the historical and cultural resources,natural landscape resources and local customs and practices and carries out a practical exploration of urban color and urban style and features as well as the heritage and development of local culture through the urban color planning of"one centre,two axes,two belts,three sections",so as to provide a constructive reference for urban color planning of other cities in China.     

上海世博会绿地后续利用研究

上海世博会绿地后续利用是上海世博会场地后续利用的重要组成部分,对上海世博会场地的后续利用能否取得成功意义重大。在借鉴往届世博会绿地后续利用成功经验的基础上,提出上海世博会绿地后续利用的3种模式（保留、更新和拆除）,并从世博会园区绿地系统规划、具体绿地规划与绿地详细设计3个层面阐述实现上海世博会绿地会间和会后功能转换的途径,以实现上海世博会绿地的后续利用。     

小麦开花后根系衰退及分布规律的初步研究

在根系地下观测室的根系生长观测箱中,对小麦根系的立体分布和开花后的衰退规律进行了观察研究。结果表明,在开花期根系生长量达到高峰后,呈直线下降趋势;开花后根系在不同层次土壤同分布主要在６０－１２０ｃｍ;根系的衰退区主要在３０－６０ｃｍ,５月１１日－２１日衰退速度最快。     

印度农业保险发展及其启示

在气候变化背景下,农业部门作为弱质产业,应对气象灾害的难度加大,探索国家对农业的科学支持政策,显得尤为重要。中印同为发展中国家,农业均深受气象灾害的危害。本研究通过分析总结印度农业保险发展的经验和教训,为中国农业保险发展提供借鉴。印度关注产量的农业保险发展阶段,通过立法成立国有的专业化农业保险公司和各类保险服务提供按保险费财政补贴,有利于农业保险供给主体的经营风险和提高经营效率,但覆盖面有限;印度气象指数保险发展阶段,气象指数透明、客观的特点和适宜的分销网络为气象指数保险推广提供了条件,但这种指数和农民损失的不完全相关性将导致农民在遭受惨重损失之时而索赔无望;区域产量和气象指数相结合的农业保险发展阶段,二者优势互补,覆盖面和理赔效率的不断提高。印度农业保险的启示在于：一是农业保险与气象致灾因子密不可分,气象指数保险与产量之间的相关性越明显,其发展潜力越大;二是农业保险属于政府支持农业发展的绿箱政策,引进竞争机制可以提高其效率与覆盖面;三是中国人均国民收入约为印度的3倍多,拥有比印度更为优越的政治制度,中国农业保险进一步优化的空间依然巨大。     

“中洲官渡世纪花园”小区环境设计

随着社会经济的发展、生活水平的提高,人们对新建居住区的环境质量越来越关注。以河南省中牟县“中洲官渡世纪花园”环境设计过程为例,从行为、事件模式、空间三者关系的角度进行分析,以人的尺度、人的活动为根本出发点,营造一种优雅、放松、生态、安全并有强烈归属感的居住环境,使居住环境的设计在较大程度上成为居民之间彼此交流、沟通的介质,进而探讨新时期小区环境设计的发展趋势,并希望对当今小区的规划设计、建设等实践有参考作用。     

Study on Industrialization Integration Between Waste Logistic and Remanufacture of Motor Vehicle of Chongqing

The authors summarize the emerging backgroun technology, development trend of green remanufacture. The d, definition, current situation in China and aboard, key signification to establish industrialization integration-base of automobile and motorcycle of Chongqing. According as current scale, technological level, development trend of automobile and motorcycle industry of Chongqing, the feasibility to establish industrialization remanufacture-base of automobile and motorcycle of Chongqing is analyzed.     

推进农业绿色高质量发展的政策研究及实践启示

农业绿色发展关系着整个生态环境资源保护和可持续发展,同时又是美化农村人居环境、推动新农村建设的重要途径。本研究通过调研分析国内外农业绿色发展的建设情况,直面中国农业绿色发展面临的严峻形势,提出推进农业绿色高质量发展的建议,旨在为“十四五”时期农业绿色发展的战略布局提供信息支撑。本研究综合使用文献调研、计量分析、专家咨询等方法,对美国、欧盟、澳大利亚、荷兰、日本等发达国及中国的农业绿色发展的模式和路径进行深入分析。研究结果表明,美国等发达国家通过一系列举措形成了农业绿色发展卓有成效的发展理念和道路,其在分子育种等领域拥有领先的尖端技术。中国的农业绿色发展经过30余年的政策演进和路径实践,也已形成了典型的、可推广、可借鉴的农业绿色发展模式体系,但目前中国农业仍面临着资源约束趋紧、面源污染严重、生态问题突出、绿色农产品区域供给差异明显、保障体系有待健全等严峻形势。结合国际发展经验和中国国情,提出优化农业主体功能、推动资源保护高效利用、净化产地环境、促进生态系统养护修复、驱动绿色供给、健全绿色农产品市场评价标准和补贴制度体系等推进农业绿色高质量发展的建议。     

改革开放30年中国农业的发展Ⅱ．历程

从1978年至今,中国实行改革开放已经30年了!在这风风雨雨的30年时间里,中国农业发生了翻天覆地的变化,取得了举世瞩目的伟大成就。作者在对中国改革开放30年农业发展历程进行全面考察的基础上,将其划分为4个发展阶段：高产阶段（1978-1984年）、优质阶段（1985-1991年）、高效阶段（1992-2001年）和安全阶段（2002年-）,并对每一发展阶段的农业特征进行了概括和分析。全文对促进新世纪、新阶段中国农业的可持续发展具有重要参考价值。     

Simulation of Ventilation and Air Conditioning Project in Xiluodu Underground Hydroelectric Power Station

For the benefit of environment protection and sustainable economic development especially in western china, to build more hydroelectric power stations is a basic policy of our government. Xiluodu project is the biggest underground hydroelectric power station. which includes 18 power generation units with a capacity more than 12 600 MW. By establish a set of heat and humidity balance equations applying on the Xiluodu project underground workshop with its boundary conditions, this paper has present an one_dimensional heat conduction model to simulate its dynamical heat transfer process. On the purpose of compare deferent design schemes of HVAC system, a package of software for numerical simulation is developed. In this paper,we have also recommend some criteria for the evaluation of HVAC system design schemes. The computation result has show that if utilizing the reservoir water and AC chiller to process the air,combing other anti_humidification technical measures,it will assure the anticipated air quality of underground facilities.     

Spatio-temporal pattern evolution and spatial spillover effect of green development efficiency: Evidence from Shandong Province,China

Improving green development efficiency is urgently required, yet challenging, since it comprehensively reflects the bidirectional evolutionary relationship between regional development and resource and environmental consumption. The issue of regional green development efficiency has become a key topic; however, where the increase in efficiency originates and its spatial spillover effect remains unclear to date. Therefore, the spatial spillover effect of the green development efficiency of Shandong Province was quantified through the slack variable (SBM)-Undesirable and Spatial Durbin model. The green development efficiency showed clear spatial differentiation in Shandong Province. This was more obvious than the polarized development trend of the provincial capital circle that has Jinan at its core and the eastern coastal region with Qingdao at its core. Green development efficiency has a significant spatial spillover effect. The regression coefficient of the direct effect of the economic development level is positive. The regression coefficient of the indirect effect of the marketization level and government financial support level is negative. Science and technology played a positive role in the promotion of the green development efficiency of local and neighboring cities. This study contributes empirical evidence to the green development efficiency associated with regional development and resource and environment consumption of Shandong Province.     

气候变暖对陕西中北部冬小麦返青前热量资源的影响

利用1961-2018年陕西中北部50个气象站温度数据和1997-2017年13个农业气象观测站的冬小麦生育期资料,采用线性趋势分析、M-K检验和GIS技术等方法,分析陕西中北部冬小麦关键发育期与界限温度的相关性,分区研究气候变暖背景下该区冬小麦返青前热量资源时空变化特征及其对冬小麦的潜在影响.结果 表明:(1)陕西中...